External risk intelligence

Windows MSHTML Platform Spoofing Vulnerability.

CVE advisoryKnown Exploit

CVE-2024-43461

A spoofing vulnerability in the Windows MSHTML Platform allows attackers to display fraudulent web pages, potentially deceiving users and leading to data compromise. This impacts organizations by undermining user trust and exposing them to further malicious activity. The risk is heightened as this vulnerability has bee

3Halo Surface Signal

Microsoft Windows 10 1507

before 10.0.10240.20766before 10.0.14393.7336before 10.0.17763.6293before 10.0.19044.4894before 10.0.19045.4894before 10.0.22000.3197before 10.0.22621.4169before 10.0.22631.4169befo...

External exposure likelihood

Halo Surface Signal score for CVE-2024-43461

This vulnerability affects the MSHTML platform, a component used by web browsers and applications to render web content. While it can be triggered by a user interacting with malicious content on the internet, the platform itself is not a public-facing service, gateway, or management portal, and the vulnerability typically requires user interaction to facilitate the exploitation flow.

Horizon Alert

Summary of the vulnerability and why it matters

The MSHTML Platform in Windows has a vulnerability that allows for the misrepresentation of information. This flaw could enable an attacker to display a fraudulent webpage to users. The impact on organizations could include potential compromise of user trust and exposure to further malicious activity through deceptive content.

  • MSHTML Platform in Windows
  • Information misrepresentation flaw
  • Deceptive webpage display

Attack Path

How an attacker could exploit the issue

This vulnerability allows an attacker to spoof a web page by misrepresenting critical information within the MSHTML Platform. The attack involves a user interacting with malicious content, leading to the spoofing of a legitimate web page. This could deceive users into revealing sensitive information or performing unintended actions.

  • Malicious content exposure.
  • User interaction with spoofed content.
  • Control over user actions.

Live Threat

Current exploitation, exposure, and threat context

This vulnerability in the Windows MSHTML Platform could allow an attacker to impersonate a trusted website, potentially leading to the disclosure of sensitive information or the execution of malicious code. Successful exploitation requires the user to interact with specially crafted web content, often through a web browser. The identified exploit has been used in real-world attacks, indicating a potential risk to organizations.

  • Attacker skill level: Moderate.
  • Required access or conditions: User interaction with malicious content.
  • Business risk or urgency: High; actively exploited.

Priority actions

Operational Fix

Recommended remediation, mitigation, and detection steps

The organization should take immediate action to address a critical spoofing vulnerability affecting the Windows MSHTML Platform. This vulnerability presents a significant risk, allowing attackers to deceive users by displaying fabricated web page content. It is imperative to identify and secure all potentially affected systems to mitigate potential business impact.

  • Identify all Windows systems.
  • Isolate or restrict access for affected systems.
  • Apply vendor updates and verify fixes.
  • Monitor for related suspicious activity.

Frequently asked questions

What is the Windows MSHTML Platform Spoofing Vulnerability (CVE-2024-43461)?

The Windows MSHTML Platform Spoofing Vulnerability, identified as CVE-2024-43461, is a flaw within Microsoft Windows' MSHTML Platform. This vulnerability allows an attacker to misrepresent critical information, enabling them to spoof a web page. This could lead to users being deceived by fraudulent content.

What type of weakness does CVE-2024-43461 represent and how is it triggered?

This vulnerability is classified under CWE-451, which relates to the misrepresentation of information. It is triggered when a user interacts with malicious content, leading to the spoofing of a legitimate web page.

How does the Windows MSHTML Platform Spoofing Vulnerability affect an organization's systems?

The vulnerability allows an attacker to impersonate a trusted website by spoofing a web page. This requires user interaction with specially crafted web content, often through a web browser. The impact can include the disclosure of sensitive information or the execution of malicious code.

What is the relevance of the Halo Surface Signal for CVE-2024-43461?

Halo classifies this vulnerability with a 'Possible' score because it affects the MSHTML platform, which is used to render web content. While it can be triggered by interacting with malicious internet content, the platform itself is not a direct public-facing service. Exploitation typically requires user interaction.

What steps should an organization take to address the Windows MSHTML Platform Spoofing Vulnerability?

Organizations should immediately identify all affected Windows systems, isolate or restrict access for vulnerable systems, and apply vendor updates as recommended. Verifying the successful application of fixes and monitoring for suspicious activity are also crucial steps to mitigate potential business impact.

References